JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (3): 143-147.

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A wireless sensor node localization algorithm

XIA Shao-bo1, XU E2   

  1. 1. College of Computer and Correspondence, Shandong TV University, Jinan  250014,China;
    2. Jinan Broadcast ＆ Television Information Network Center, Jinan  250014,China
  • Received:2010-02-25 Online:2010-06-16 Published:2010-02-25

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Abstract:

 A DV-Hop localization algorithm from the basis of difference is proposed, which is specific to questions of node localization algorithm in a wireless sensor network (WSN) system. The beacon node surveyed the positioning error and took the correct value of the regional broadcast. After the unknown node received the adjustment information from the beacon node,  it revised its own relative position reckoning value to reduce the node position error and to enhance the precision of the localization algorithm. Simulation tests show that, compared with the ordinary DV-Hop  algorithm, this algorithm gets distinct improvement from performance indices between the position error and communication distance ratio.

Key words: wireless sensor network, node localization, localization algorithm

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